Loading unit velocity and position feedback

- Covidien LP

A loading unit for a surgical stapling device has a cartridge assembly and an anvil assembly, the cartridge assembly including a channel and a staple cartridge having a plurality of surgical staples therein. An axial drive assembly has a clamping member, the clamping member having an upper flange for engaging the anvil assembly, and a lower flange for engaging the channel. The axial drive assembly is movable through the staple cartridge to drive the staples out of the staple cartridge and against the anvil assembly. Mechanical features are defined in the channel for indicating an end of stroke for the axial drive assembly, the mechanical features having a first pattern and a second pattern.

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Description
CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation application of U.S. patent application Ser. No. 13/955,486, filed Jul. 31, 2013, now U.S. Pat. No. 9,421,014, which claims the benefit of and priority to U.S. Provisional Patent Application No. 61/715,485, filed Oct. 18, 2012, the entire disclosure of which is incorporated by reference herein.

TECHNICAL FIELD

The present disclosure is directed to surgical devices, such as surgical stapling instruments, that have a handle portion and a removable and replaceable end effector or loading unit. In particular, the present disclosure relates to surgical devices and loading units having sensors for identifying the type of end effector, and providing feedback concerning the use of the loading unit.

BACKGROUND

Surgical devices having a handle portion and a replaceable unit are known. A surgical device that can be used to fire different types and sizes of loading units is disclosed in U.S. Pat. No. 7,044,353 to Mastri et al. (“Mastri”), the disclosure of which is hereby incorporated by reference in its entirety. In Mastri, the loading units can have different sized surgical staples and, further, different staple line lengths. U.S. Pat. No. 7,565,993 to Milliman et al. discloses articulating and non-articulating loading units that can be used with a handle portion, the disclosure of which is hereby incorporated by reference in its entirety.

Surgical devices having an adapter assembly and a plurality of surgical end effectors that can be attached thereto are disclosed in U.S. Publication No. 2011-0174099, which is hereby incorporated by reference in its entirety. The adapter is used to enable a powered motorized hand held driver to connect to a variety of end effectors, such as an end to end anastomosis end effector, or circular stapler, an endoscopic gastrointestinal anastomosis end effector, such as a linear endoscopic stapler, or a transverse anastomosis end effector. Powered surgical devices having a remote power console have also been proposed, as disclosed by U.S. Pat. No. 6,846,307 to Whitman et al. (“Whitman”), which is hereby incorporated by reference in its entirety. Whitman discloses a controller in the console for controlling the surgical device. The controller can have a memory unit, including RAM and ROM, and reads data from the particular end effector attached to the controller. The controller can read identification data from a memory unit on the end effector attached to the controller and then, by virtue of the controller's connection to the motors of the surgical device, control the operation of the surgical device.

A powered surgical instrument is disclosed by U.S. Pat. No. 7,887,530 to Zemlok et al., the entire disclosure of which is hereby incorporated by reference herein, utilizes a shift motor to drive multiple functions of the instrument. A variety of sensors is disclosed.

In the context of surgical devices designed to be used with a variety of removable and replaceable end effectors or loading units, it is desirable to identify the type of end effector or loading unit that is attached. This information can be used to determine how to operate the surgical device.

SUMMARY

A loading unit for a surgical stapling device comprises a cartridge assembly and an anvil assembly, the cartridge assembly including a channel and a staple cartridge having a plurality of surgical staples therein. The loading unit has an axial drive assembly with a clamping member, the clamping member having an upper flange for engaging the anvil assembly, and a lower flange for engaging the channel, the axial drive assembly being movable through the staple cartridge to drive the staples out of the staple cartridge and against the anvil assembly. Mechanical features are defined in the channel for indicating an end of stroke for the axial drive assembly, the mechanical features having a first pattern and a second pattern.

The staple cartridge of the loading unit can have a plurality of staple retaining recesses and the surgical staples are disposed in the staple retaining recesses. In certain embodiments, the staple retaining recesses are arranged in linear rows. The axial drive assembly can include a drive beam.

In certain embodiments, a sensor is included for determining a gap between the anvil assembly and the cartridge assembly.

A surgical stapling device, comprising an elongate portion and a loading unit. The loading unit comprises a cartridge assembly and an anvil assembly, the cartridge assembly including a channel and a staple cartridge having a plurality of surgical staples therein. The loading unit has an axial drive assembly with a clamping member, the clamping member having an upper flange for engaging the anvil assembly, and a lower flange for engaging the channel, the axial drive assembly being movable through the staple cartridge to drive the staples out of the staple cartridge and against the anvil assembly. Mechanical features are defined in the channel for indicating an end of stroke for the axial drive assembly, the mechanical features having a first pattern and a second pattern.

The surgical stapling device can further comprise a handle portion. The surgical stapling device handle portion can have a motor assembly. The surgical stapling device can comprise a controller. The surgical stapling device controller can be configured to determine the end of stroke. The surgical stapling device can have the first pattern of mechanical features with mechanical features of a different size than a size of the mechanical features of the second pattern.

The staple cartridge of the loading unit can define a longitudinal axis and staple retaining recesses arranged in linear rows along the longitudinal axis. The channel of the cartridge assembly can define a slot. A distal end of the slot may form the end of stroke.

The second pattern of mechanical features can be closer to the distal end of the slot than the first pattern of mechanical features. In certain embodiments, a light sensor detects the mechanical features.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of the presently disclosed surgical device are disclosed herein, with reference to the following drawings:

FIG. 1 is a perspective view of the handle portion according to certain embodiments of the disclosure;

FIG. 1A is a perspective view of a handle portion and loading units according to certain embodiments of the disclosure;

FIG. 2 is a perspective view of an adapter attached to a handle portion, with some parts removed according to certain embodiments of the disclosure;

FIG. 3 is an exploded perspective view of an adapter according to certain embodiments of the disclosure;

FIG. 4 is a cross sectional view of part of an adapter according to certain embodiments of the disclosure;

FIG. 5 is a perspective view of a loading unit according to certain embodiments of the present disclosure;

FIG. 6 is an axial drive assembly for a loading unit according to certain embodiments of the present disclosure;

FIG. 7 is a detailed view of the clamping member of the axial drive assembly in accordance with certain embodiments of the present disclosure;

FIG. 8 is an exploded view of the loading unit according to certain embodiments of the present disclosure;

FIG. 9 is a top plan view of the loading unit according to certain embodiments of the present disclosure;

FIG. 10A is a side elevation view of a drive assembly according to embodiments of the present disclosure; and

FIG. 10B is a side elevation view of a drive assembly according to embodiments of the present disclosure.

 DETAILED DESCRIPTION

Persons having skill in the art will understand the present invention from reading the following description in conjunction with the accompanying drawings. Reference characters indicate the same or similar elements throughout the drawings. As is customary, the term “distal” refers to a location farther from the user of the instrument and the term “proximal” refers to a location that is closer to the user of the instrument.

A surgical device having a handle portion 10, and a plurality of removable and replaceable loading units, is shown in FIGS. 1 through 9. The surgical device includes an elongate portion. For example, the handle portion 10 may have an endoscopic shaft that forms part of the handle portion 10 or the handle portion 10 may be connected to an adapter assembly 100 that includes an outer tube 106 and release button 104 having a latch for removably connecting the adapter assembly to the handle portion 10. Alternatively, the connection can be a threaded connection, bayonet connection or any other connection. In any of the embodiments disclosed herein, a plurality of different adapters may be provided, to work in conjunction with a plurality of different handle portions and/or a plurality of different end effectors, to provide a versatile surgical system. For example, adapter assemblies can be provided with different length shafts, or shafts with different shapes such as curved or straight. Adapter assemblies can be provided to connect to different surgical end effectors, such as electrosurgical instruments, circular staplers, linear endoscopic staplers, etc.

The distal end of the endoscopic shaft, or the distal end of the adapter assembly 100, has a connection portion 12 for forming a connection to a loading unit. Loading units 20, 30 and 40 are shown. Although a linear endoscopic stapling loading unit 20 is described in detail, a circular stapling 30 or a transverse stapling 40 loading unit may also be attached to the surgical device. Loading units incorporating electrical energy, ultrasonic energy, or other energy can also be provided. Appropriate adapter assemblies are provided to accommodate the various loading units. For example, it may be desirable to provide three drive shafts for operating the circular stapling loading unit 30. An adapter assembly having three drive shafts therein could be used to separately drive the opening and closing of the anvil to grasp tissue, the driving of the staples through tissue and against the anvil, and the cutting of tissue.

The adapter assembly 100 that is used with the loading unit 20 has a body 130 and two drivers: an articulation drive cable 136 and a stapling drive cable 134. As best seen in FIG. 3, the adapter assembly 100 has a drive converter assembly for each of the drive shafts, to convert rotational motion of the output from the motor assembly 5 to linear translation of the drive members of the adapter assembly. For example, the first drive converter assembly 150 has a first shaft 152 that connects to a first output from the motor assembly 5 via the drive cable 136. The first shaft 152 includes a threaded distal end 152b. The articulation drive bar 154 has an internally threaded collar 154a that is engaged with the threaded distal end of the first shaft 152. The threaded distal end 154b is long enough to translate the articulation drive bar 154 a desired distance.

The second drive converter assembly 140 has a second shaft 148 that connects to a second output from the motor assembly 5, through the stapling drive cable 134. The second shaft 148 includes a threaded proximal end 148a. An internally threaded collar 146 is engaged with the threaded proximal end 148a of the second shaft. The collar 146 is connected to a tubular sleeve 144. A proximal coupling 142 connects the drive cable 134 to the tubular sleeve 144. As the drive cable 134 rotates, the tubular sleeve 144 and collar 146 are rotated and the second shaft 148 is advanced in a distal direction. The threaded proximal end 148a is long enough to translate the second or stapling drive shaft 148 a desired distance for clamping of tissue and firing staples. In any of the embodiments disclosed herein, the drive converter assembly can have shafts that are internally threaded and the articulation drive shaft and/or stapling drive shaft can have an end that forms a threaded rod to engage and interact with the internally threaded member.

The motor assembly 5 can be separate from the surgical device, but is desirably part of the handle portion 10. One or more motors are used. For example, two dual directional motors can be mounted in the handle portion 10 and connected to a power source which may be a battery internal or external to the handle portion 10. It is contemplated that the power source can be a tethered power source such as a generator or electrical outlet connection, and the handle can lack a battery or include a battery in addition to the other power source. Each motor can be connected to a switch on the handle portion and an additional switch for reversing the direction of the motors can be provided on the handle portion as well. The power source is desirably a removable and rechargeable direct current battery, but alternative sources, such as a remote access outlet for alternating current supply, can be used. A transformer or gear set can be used to adapt the power source for the motors.

The distal end of the adapter assembly 100 has a connection portion 12 for removably connecting to the loading unit 20. The connection portion 12 may essentially form a bayonet connection, like that described in U.S. Pat. No. 7,044,353 to Mastri et al. (“Mastri”), the disclosure of which is hereby incorporated by reference herein in its entirety. A locking member 164 for securing the loading unit 20 unto the adapter assembly 100 is connected to a button 162. The button 162 is spring biased to a locked position to prevent removal of the loading unit until the button is moved to an unlocked position.

The endoscopic linear stapling loading unit can be like those described in Mastri or Millman et al., U.S. Pat. No. 7,565,993, the entire disclosures of which are hereby incorporated by reference herein. The loading unit 20 has an elongate body portion 502 with a proximal end 650 defining two lugs 652 for forming a connection with a shaft of an adapter assembly 100 or a handle portion. Other means of connecting the loading unit can be used. The loading units can be designed to be attached to either a powered, motorized surgical driver or manually actuated handle. An end 164a of the locking member 164 of the connection portion of the adapter assembly 100 (see FIG. 3) engages the lugs 652 of the loading unit to secure it in place. A tube 602 is disposed around the body 502.

The loading unit 20 has an articulation link 566 with a hooked proximal end 666 for engaging a hooked distal end 154c of the articulation drive bar 154. An axial drive assembly 560 has a proximal pusher 614 for engaging the stapling drive shaft 148. Each of the stapling drive shaft 148 and articulation drive bar 154 are driven by their respective outputs from the motor assembly and, by virtue of the drive converter assemblies, are translated axially in a distal direction.

The axial drive assembly 560 has a stapling drive member or drive beam 604 and clamping member 606 at a distal end of the drive beam 604. (See FIG. 8). The drive beam 604 may be an elongate sheet of material or a series of stacked sheets of material. The clamping member 606 is a member that has an upper flange 606b and a lower flange 606c (see FIG. 7) attached to a vertical portion 606a that has a knife blade. The clamping member 606 is attached to the drive beam or drive member 604 by welding, adhesive, or some other method. The proximal portion of the drive beam 604 has an opening for carrying the pusher 614 so that the stapling drive shaft 148 will drive movement of the axial drive assembly distally. The clamping member 606 may have molded pieces of plastic, or another plastic coating, for reducing the friction that will occur during clamping and stapling. See EP 1,908,414 and U.S. Publication No. 2008/0083812, the entire disclosures of which are hereby incorporated by reference herein.

A pair of jaws 506, 508 are attached to the elongate body 502 via a mounting portion 572. A stapler anvil assembly 506 includes an anvil 512 and cover 510. The anvil 512 defines a slot to allow the passage of the axial drive assembly. The cartridge assembly 508 includes a staple cartridge 518, channel 516 and a firing assembly for interacting with the drive beam 604 and clamping member 606. The channel has a ramped or sloping surface 516a. The channel 516 also defines a slot (not shown) that allows the vertical portion 606a to extend through the slot and locate the lower flange 606c below the channel 516. The staple cartridge 518 defines a plurality of staple slots 528 and a slot 526 corresponding to the slots in the channel 516 and anvil 512.

The anvil assembly, cartridge assembly, or both, are pivotably movable. For example, the channel 516 has a proximal end with two holes 580 for receiving bolts 582. The bolts extend through mounting assembly 572 so that the cartridge assembly can pivot with respect to the anvil assembly. In this way, tissue can be clamped between the anvil assembly 207 and the cartridge assembly 230.

Referring to FIG. 8, a mounting assembly 572 is pivotally secured to the distal end of body 502, and is configured to be attached to the proximal ends of the jaws of the loading unit 20 such that pivotal movement of mounting assembly 572 about an axis perpendicular to the longitudinal axis of housing portion 502 effects articulation of the pair of jaws.

Referring to FIG. 8, mounting assembly 572 includes upper and lower mounting portions 584 and 574. Each mounting portion includes a bore on each side thereof dimensioned to receive bolts 582 for securing the proximal end of channel 516 thereto. A pair of coupling members 594 engage the distal end of housing portion 502 and engage the mounting portions. Coupling members 594 each include an interlocking proximal portion configured to be received in grooves 598 formed in the housing portion 502 to retain mounting assembly 572 and body 502 in a longitudinally fixed position in relation thereto.

A pair of blow out plates 710 are positioned adjacent the distal end of body 200 adjacent the distal end of axial drive assembly to prevent outward bulging of drive assembly during articulation of the pair of jaws. Each blow-out plate 710 includes a planar surface which is substantially parallel to the pivot axis of the pair of jaws and is positioned on a side of drive assembly to prevent outward bulging of drive member 604. Each blow-out plate includes a first distal end which is positioned in a respective first groove formed in mounting assembly 574 and a second proximal end which is positioned in a respective second groove formed in a distal end of housing 503b.

Staples 530 are disposed in the staple slots 528 and are driven out of those staple slots by pushers 533. The vertical portion 606a also extends through the slot in the anvil member 512 to locate the upper flange 606b on an upper surface of the anvil 512. A sled 536 is positioned in the staple cartridge initially in a proximal position, and has wedges 534 that engage the pushers 533. The pushers have camming surfaces (not shown) so that as the sled 536 is advanced by the drive beam 604 and clamping member 606, the sled will lift the pushers, driving the staples out of the slots 528, through tissue, and against staple forming recesses in the anvil 512. As the drive beam 604 and clamping member 606 is initially advanced, the upper flange rides along the ramped surface 516a to approximate the anvil assembly 506 with the cartridge assembly 508. As the staples are fired, the drive beam 604 and clamping member 606 continue to engage the anvil assembly and cartridge assembly to maintain the position of the anvil assembly and cartridge assembly during firing of the staples.

The loading unit 20 can include a first data connector for connection with a second data connector on the adapter assembly 100, to feed data back to a controller 9 in the handle portion 10. The first data connector can comprise a contact or contacts on the body 200 of the loading unit, whereas the second data connector can be one or more contacts arranged on the adapter assembly 100 to connect with the contacts of the first data connector. A memory unit is disposed in the loading unit and is connected to the first data connector. The memory unit can comprise an EEPROM, EPROM, or the like, contained in the body 200 and can hold information such as the type of loading unit, the size of the staples in the loading unit, the length of the staple line formed by the loading unit when the staples are fired, and information about whether the loading unit has already been fired. The second data connector is connected to the controller 9 in the handle assembly by wires, or leads, that extend through the adapter assembly, or via wireless connection. Alternatively, the memory unit of the loading unit can communicate wirelessly with the controller in the handle portion.

The memory unit can store the end of stroke of the axial drive assembly, or the length of the stroke, for the loading unit. This information can be used by the controller 9 to avoid over driving the axial drive assembly, which can damage the loading unit. In this way, the controller can receive the end of stroke or stroke length information, and halt the driving of the stapling drive cable 134 when the end of the stroke is reached. Alternatively, the controller 9 can be configured to detect when the axial drive assembly has reached the end of the stroke, and has fired all the staples in the staple line. The controller detects this, using sensors in the loading unit, or by monitoring the current in the motor assembly. For example, when the current in the motor assembly increases dramatically, or spikes, the operation of the motor assembly is halted.

The controller 9 can be an integrated circuit, analog or logic circuitry, and/or microprocessor, or an array of such components. The controller receives information from the loading unit memory unit, other sensors in the adapter assembly and/or loading unit, and can control the operation of the surgical device. For example, sensors can be used to detect the clamping forces at the cartridge assembly and anvil assembly. The controller can initiate a visual or audible alarm in the event that recommended forces are exceeded, or the controller can cease operation of the surgical device by halting the motor of the handle assembly. A removable memory chip or card can also be included.

Where loading units 20 having different staple line lengths are available for use with the surgical device, identifying the length of the staple line and using that information to control the operation of the surgical device can be useful. For example, the controller 9 receives the staple line length from the memory unit and through the first data connector on the loading unit. That information is compared with data from the memory unit 11 in the handle portion 10 to determine how far to drive the staple drive shaft 148 and avoid driving that shaft 148 too far, and potentially damaging the loading unit. The type of loading unit, and the staple line length, staple size, etc., can therefore be used to control the operation of the surgical device. The controller 9 can be programmed to reverse the direction that the stapling drive cable 134 is driven after the staple line length is reached, thereby reversing the direction of the stapling drive shaft 148 and allowing the jaws of the loading unit to open. Alternatively or additionally, sensors can be provided in the loading unit to determine the position of the sled 536, clamping member 606, and/or drive beam 604, and to reverse the direction of the motor when the end of the staple line has been reached.

The handle portion 10 supplies power to the motor assembly 5 through a battery, generator, or electrical socket in order to drive the rotation of the cables 134, 136. The amount of torque required to clamp the jaws of the loading unit onto tissue can be sensed, by monitoring the motor current. During clamping of tissue, during the initial movement of the clamping member 606 over the ramped surface 516a of the channel 516, the clamping member 606 exerts forces on the channel 516, and on the tissue being clamped between the cartridge assembly and anvil assembly. These forces can be detected by the controller 9, and characterized. For example, the force of the cartridge assembly in clamping tissue against the anvil 512 can be detected and compared to data in the memory unit 11 of the controller, and used to provide information to the surgeon. Also, this information can be saved and reported for later use. The handle portion 10 desirably has a display unit and/or indicator for displaying information or alerting the user of the surgical device. Additionally or alternatively, the device can include an audio component for sounding an audible alarm or recorded message. The display can be a light emitting diode, liquid crystal display or any other display.

An encoder or encoders can be used as one or more of the sensors of the surgical device. The encoder includes Hall effect devices mounted adjacent the drive shafts from the motors, to detect a magnet or magnets mounted on the shafts. In this way, the angular position of the drive shafts and their direction, as well as the position of the drive shafts, drive cables 134, 136, articulation drive bar 154, and/or stapling drive shaft 148 can be determined. It is contemplated that, in any of the embodiments disclosed herein, there are encoders or other sensors provided for the drive cables 134, 136, articulation drive bar 154, and/or stapling drive shaft 148. In any of the embodiments disclosed herein, current draw characteristics from the battery or batteries, and from the one or more motors of the motor assembly 5 are sensed. Other strain, force, and/or positional sensors in the end effector, adapter assembly, and/or handle portion are contemplated.

Sensors 211 can also be provided in the loading unit 20 to determine the gap between the staple cartridge 508 and anvil 512. The controller 9 can include tables of information that indicate the desired gap for a particular loading unit (based on staple size, staple line length, etc.) and can be used to prevent the firing of staples in the event that the desired gap cannot be achieved. For example, U.S. Patent Publication No. 2012/0211542, the entire disclosure of which is hereby incorporated by reference herein, discloses tissue management modes for controlling a surgical device and utilizes stored correlation tables. In any of the embodiments disclosed herein, the surgical device can include a controller and sensors in the adapter assembly 100, loading unit 20, and/or handle portion 10 that determine the clamping force, the gap between the cartridge 508 and anvil 512, whether the loading unit has been used, the type of loading unit, and/or the staple line length or size. The information is used to control the operation of the surgical device, provide some indication to the user, and/or is simply stored for later use.

In any of the embodiments disclosed herein, the loading unit has a mechanical feature for determining the type of cartridge 220, the staple line length, size of the staples, etc. The mechanical feature is a specially shaped bump, depression, or series of bumps or depressions, that are unique to that type of loading unit. The mechanical feature can have different shapes and/or textures, can determine staple size, staple line length, or both. It can also be used to determine other aspects of the loading unit, such as whether it is articulating or non-articulating, or whether a buttress material is being used. The mechanical feature can be a coating on the loading unit, that provides texture, a different frictional resistance, or some other aspect that can differentiate the type of loading unit.

The mechanical feature 1020 is located on the loading unit at a location where the clamping member 606 engages the cartridge assembly 508, anvil assembly 506, or both. As shown in FIG. 9, a loading unit 1001 has an anvil assembly and cartridge assembly 1230. In the initial advancement of the clamping member 606, which can be the clamping member shown in FIGS. 6, 7 and 8, the clamping member lower flange 606c traverses the ramped surface 516a. Then, the clamping member proceeds to move down the surface of the channel 1516, as driven by the staple drive member 148. The mechanical feature or features 1020 provided on the channel 1516 change the force or torque at the motor. The change in force or torque is detected by the controller 9 of the handle portion and compared to data in the memory unit 11 of the controller. The end of stroke 1040 for the particular loading unit 1001 is determined. Using this information, the controller 9 determines that the loading unit 1001 has, for example, a 60 millimeter staple line length, and drives the stapling drive cable 134 a predetermined number of rotations, to drive the stapling drive shaft 148 the distance necessary for driving all of the staples, but not exceeding the length of the cartridge assembly.

For example, the linear force can be determined utilizing motor current, motor current limits, and/or revolutions per minute. Alternatively, strain gauges can be used. These measurements can be taken with sensors in the end effector, adapter assembly and/or handle portion.

In addition, it can be determined that the loading unit is an articulating loading unit, allowing the articulation drive cable 136 to be driven. If it is determined that the loading unit is not an articulating loading unit, the articulation drive cable 136 is prevented from being driven by not turning on the corresponding motor in the motor assembly 5. For example, a mechanical feature or features 1020 can be provided on the anvil 512 that identify the type of loading unit, staple line length, staple size, or identify the loading unit as articulating. Similarly, a mechanical feature or features 1020 can be provided on the channel 1218 and/or anvil surface that identify the loading unit as having a buttress preloaded onto the loading unit, or identify the loading unit as one that has a dissecting tip.

In any of the embodiments disclosed herein, the mechanical feature 1020 can be provided on the anvil assembly, cartridge assembly 1230, or both, in a pattern of recesses, protrusions, hills, valleys, or some combination of the foregoing. The physical features of the pattern of mechanical features 1020 change the force or torque at the motor assembly and are detected at the controller. In certain embodiments, the mechanical features 1020 have a first pattern 1020a and a second pattern 1020b. Two or more different patterns can be used, to expand the number of different loading units 1001 that can be indicated. In addition, the pattern or a change in the pattern of mechanical features 1020 can be used to indicate that the clamping member 606 is reaching the end of stroke 1040. The controller can be configured (programmed or structured or the like) to monitor the change in force or torque, and determine when the operation of the motor assembly 5 should be arrested. In this way, the driving of the axial drive assembly is halted before the axial drive assembly reaches the end of stroke 1040. For example, as shown in FIG. 9, the mechanical features 1020 have a first pattern 1020a and a second pattern 1020b that are different from each other in that they have different recesses or protrusions. For example, first pattern 1020a has recesses or protrusions that are longer in length than the recesses or protrusions of the second pattern 1020b. The controller is configured to determine the end of stroke 1040 for the particular loading unit 1001 based on the change in the torque or force detected by the controller. The velocity of the movement of the clamping member, as well as its position, can be determined, based on the indication provided by the mechanical feature.

For example, the loading unit 1001 has a cartridge assembly 1230 with a staple cartridge that defines a longitudinal axis X as shown in FIG. 9. The axial drive assembly is driven through the staple cartridge to fire the surgical staples as discussed above, in the longitudinal direction along the axis X. As the axial drive assembly is driven, the clamping member 606 lower flange 606c engages the channel 1516 and any mechanical features 1020 provided on the channel 1516. In this way, the lower flange 606c engages the first pattern 1020a of mechanical features first, and then engages the second pattern 1020b of mechanical features. The second pattern 1020b of mechanical features is disposed closer to a distal end of the channel 1516, and closer to the end of stroke 1040.

The channel 1516 defines a slot 1517 to allow the vertical portion 606a of the clamping member to pass through the slot 1517 so that the lower flange 606c can engage the channel 1516. A distal end of the slot 1517 is defined in the channel, and forms the end of stroke 1040. Attempting to drive the axial drive assembly past the distal end of the slot 1517, past the end of stroke 1040, can result in damaging the loading unit 1001, the adapter assembly, components of the handle assembly, etc.

In any of the embodiments disclosed herein, electronic sensors, optical sensors, magnetic sensors, and/or any other kind of sensors, can be used in addition to the mechanical feature 1020 to provide information about the particular loading unit and its use. In any of the embodiments disclosed herein, an electronic sensor, magnetic sensor, optic sensor, or other sensor, is provided on the upper flange 606b, anvil 512, channel 516, or any combination thereof, to indicate the type of loading unit, staple size, staple line length, other aspects of the loading unit, and/or whether the loading unit has been fired or previously used.

In any of the embodiments disclosed herein, the adapter assembly can include a sensor or identification chip, for any of the purposes discussed herein, including for identifying the type of adapter assembly or characteristics thereof. Electronic sensors, optical sensors, magnetic sensors, and/or any other kind of sensors can be used. Desirably, the sensor or chip communicates with the controller, which may be located in the handle portion, through wires or leads, or through wireless communication.

The sensors provided may include, in any of the embodiments disclosed herein, temperature sensors for measuring the internal temperature in or around the surgical device.

The controller comprises one or more microprocessors or chips, as discussed above. The controller can comprise more than one such chips or processors, and can be an array of such elements. Data for determining the type and characteristics of end effectors, adapter assemblies and/or handle portions can be stored in memory units in the form of graphs, charts, tables, arrays, or the like. This can be used in conjunction with other systems provided for the surgical device.

Furthermore, the circular stapling loading unit 30 and transverse stapling loading unit 40 have driver members like the clamping member 606 and drive beam 604 described above that can be used with mechanical features 1020 to determine the type of loading unit, size of staples, length or diameter of the staple line, etc. Mechanical features on the driven elements of these stapler components can be used to identify the information discussed herein.

Information communicated through a feedback loop of the controller can be used to determine functional modes for each unique end effector, adapter assembly, and/or handle portion. Based on an end effector or loading unit ID and current firing conditions, performance of the system can be dynamically adjusted to achieve improved outcomes. These settings can be pre-determined or intelligently adapter by the controller during operation.

One example implementing this would be adjusting the torque output when an unknown buttress material was detected to be in use.

The mechanical features can be located in a variety of positions. Examples can include, but are not limited to the following.

In a circular stapler device, such as an EEA stapler, the mechanical features are provided along any component or components which move during operation. Mechanical features can be formed on the clamp shaft and/or staple shaft. The clamp shaft has the largest stroke and can be used to collect both positional information and force information. For example, the controller could monitor how a component deforms under the applied load and measuring this deformation using the feedback loop sensors and the controller.

In a linear endoscopic device, such as an Endo GIA stapler, the location of the mechanical features in the end effector or loading unit can include, but is not limited to, mechanical features on the sides of the drive beam, which would be read by a sensor as they pass. This pattern can be applied symmetrically on both sides, or asymmetrically to increase bandwidth of the signal.

Mechanical features on the top and or bottom of the knife bar (see FIG. 10) can be such that a sensor can detect the features along the surface. The drive bar may have a plurality of openings or windows which can be used in lieu of or in addition to mechanical features. A conventional physical sensor, or a photocell, could be used to determine such windows have passed, or how many have passed, or how quickly they have passed. In any of the embodiments disclosed herein, a conventional physical sensor, or a photocell, could be used to determine that the mechanical features have passed, and/or how many have passed, and/or how quickly they have passed.

Furthermore, the bottom portion of the clamping member, the lower flange 606c, or a separate member that forms the bottom portion, can include the mechanical features. Such mechanical features can be on the surface that engages the channel, or on the sides of the flange. The channel itself could include mechanical features, or the sides of the drive beam can include such features. See FIGS. 10A and 10B. The loading unit may include a sensing member 2001 being attached to the loading unit housing at one end, and having an opposite free end 2003. The member 2001 is flexible and includes a protrusion 2005 on the free end 2003. As the drive beam or member 2560 is advanced through the staple cartridge and anvil, the protrusion interacts with mechanical features 2020 on the drive beam. As shown in FIG. 10B, the mechanical features 2020 may be recesses on the drive beam. In other embodiments, a photocell or other sensor detects, counts, records, or otherwise recognizes the mechanical features as a means to identify the loading unit, characteristics thereof, the end of stroke, and/or the velocity of the drive bar. The remaining components of the loading unit having the drive beam 2560 can be as described above in connection with loading unit 20.

While the present invention has been described and illustrated in connection with certain embodiments, it is not the intention of the applicant to restrict or in any other way limit the scope of the claims to such detail. Additional advantages and modifications will be readily apparent to those skilled in the art.

Claims

1. A loading unit for a surgical stapling device, comprising:

a cartridge assembly including: a channel; an axial drive assembly having a clamping member, the clamping member having a flange configured to engage the channel; and at least one mechanical feature defined in the channel for indicating an end of stroke upon engagement by the axial drive assembly, the at least one mechanical feature selected from the group consisting of a bump, a depression, a recess, and combinations thereof;
a motor configured to move the axial drive assembly; and
a controller coupled to the motor and configured to determine the end of stroke based on a change in torque of the motor in response to the clamping member engaging the at least one mechanical feature.

2. The loading unit according to claim 1, wherein the at least one mechanical feature includes a first mechanical feature and at least a second mechanical feature, the first and second mechanical features having different sizes.

3. The loading unit according to claim 1, wherein the at least one mechanical feature includes a first mechanical feature and at least a second mechanical feature, the first and second mechanical features having the same sizes.

4. The loading unit according to claim 1, wherein the at least one mechanical feature includes a first mechanical feature and at least a second mechanical feature, the first and second mechanical features are the same type.

5. The loading unit according to claim 1, wherein the at least one mechanical feature includes a first mechanical feature and at least a second mechanical feature, the first and second mechanical features are of different type.

6. The loading unit according to claim 1, wherein a distal end of the channel forms the end of stroke.

7. The loading unit according to claim 1, further comprising a first plurality of mechanical features disposed in a first pattern and a second plurality of mechanical features disposed in a second pattern, wherein the first plurality of mechanical features is closer to a distal end of the channel than the second plurality of mechanical features.

8. The loading unit according to claim 1, further comprising a light sensor configured to detect the at least one mechanical feature.

9. The loading unit according to claim 1, further comprising an anvil assembly coupled to the cartridge assembly, wherein the clamping member is configured to engage the anvil assembly and the channel.

10. The loading unit according to claim 1, wherein the cartridge assembly further includes a staple cartridge having a plurality of surgical staples therein, the axial drive assembly being movable through the staple cartridge to drive the staples out of the staple cartridge.

11. A loading unit for a surgical stapling device, comprising:

a cartridge assembly including: a channel; an axial drive assembly having a clamping member, the clamping member having a flange configured to engage the channel; and at least one mechanical feature defined in the channel for indicating an end of stroke upon engagement by the axial drive assembly;
a motor configured to move the axial drive assembly; and
a controller coupled to the motor and configured to determine the end of stroke based on a change in torque of the motor in response to the clamping member engaging the at least one mechanical feature.

12. The loading unit according to claim 11, wherein the at least one mechanical feature includes a first mechanical feature and at least a second mechanical feature, the first and second mechanical features having different sizes.

13. The loading unit according to claim 11, wherein the at least one mechanical feature includes a first mechanical feature and at least a second mechanical feature, the first and second mechanical features having the same sizes.

14. The loading unit according to claim 11, wherein a distal end of the channel forms the end of stroke.

15. The loading unit according to claim 11, further comprising a first plurality of mechanical features disposed in a first pattern and a second plurality of mechanical features disposed in a second pattern, wherein the first plurality of mechanical features is closer to a distal end of the channel than the second plurality of mechanical features.

16. The loading unit according to claim 11, further comprising a light sensor configured to detect the at least one mechanical feature.

17. The loading unit according to claim 11, further comprising an anvil assembly coupled to the cartridge assembly, wherein the clamping member is configured to engage the anvil assembly and the channel.

18. The loading unit according to claim 11, wherein the cartridge assembly further includes a staple cartridge having a plurality of surgical staples therein, the axial drive assembly being movable through the staple cartridge to drive the staples out of the staple cartridge.

Referenced Cited
U.S. Patent Documents
2777340 January 1957 Hettwer et al.
2957353 October 1960 Babacz
3111328 November 1963 Di Rito et al.
3695058 October 1972 Keith, Jr.
3734515 May 1973 Dudek
3759336 September 1973 Marcovitz et al.
4162399 July 24, 1979 Hudson
4606343 August 19, 1986 Conta et al.
4705038 November 10, 1987 Sjostrom et al.
4722685 February 2, 1988 de Estrada et al.
4823807 April 25, 1989 Russell et al.
4874181 October 17, 1989 Hsu
5129118 July 14, 1992 Walmesley
5129570 July 14, 1992 Schulze et al.
5152744 October 6, 1992 Krause et al.
5301061 April 5, 1994 Nakada et al.
5312023 May 17, 1994 Green et al.
5326013 July 5, 1994 Green et al.
5350355 September 27, 1994 Sklar
5383874 January 24, 1995 Jackson et al.
5383880 January 24, 1995 Hooven
5389098 February 14, 1995 Tsuruta et al.
5395033 March 7, 1995 Byrne et al.
5400267 March 21, 1995 Denen et al.
5411508 May 2, 1995 Bessler et al.
5413267 May 9, 1995 Solyntjes et al.
5427087 June 27, 1995 Ito et al.
5433721 July 18, 1995 Hooven et al.
5467911 November 21, 1995 Tsuruta et al.
5476379 December 19, 1995 Disel
5487499 January 30, 1996 Sorrentino et al.
5518163 May 21, 1996 Hooven
5518164 May 21, 1996 Hooven
5526822 June 18, 1996 Burbank et al.
5529235 June 25, 1996 Boiarski et al.
5535934 July 16, 1996 Boiarski et al.
5535937 July 16, 1996 Boiarski et al.
5540375 July 30, 1996 Bolanos et al.
5540706 July 30, 1996 Aust et al.
5542594 August 6, 1996 McKean et al.
5549637 August 27, 1996 Crainich
5553675 September 10, 1996 Pitzen et al.
5562239 October 8, 1996 Boiarski et al.
5564615 October 15, 1996 Bishop et al.
5609560 March 11, 1997 Ichikawa et al.
5626587 May 6, 1997 Bishop et al.
5632432 May 27, 1997 Schulze et al.
5645209 July 8, 1997 Green et al.
5647526 July 15, 1997 Green et al.
5653374 August 5, 1997 Young et al.
5658300 August 19, 1997 Bito et al.
5662662 September 2, 1997 Bishop et al.
5667517 September 16, 1997 Hooven
5693042 December 2, 1997 Boiarski et al.
5704534 January 6, 1998 Huitema et al.
5713505 February 3, 1998 Huitema
5762603 June 9, 1998 Thompson
5779130 July 14, 1998 Alesi et al.
5782396 July 21, 1998 Mastri et al.
5782397 July 21, 1998 Koukline
5792573 August 11, 1998 Pitzen et al.
5797536 August 25, 1998 Smith et al.
5820009 October 13, 1998 Melling et al.
5863159 January 26, 1999 Lasko
5908427 June 1, 1999 McKean et al.
5954259 September 21, 1999 Viola et al.
5964774 October 12, 1999 McKean et al.
5993454 November 30, 1999 Longo
6010054 January 4, 2000 Johnson et al.
6017354 January 25, 2000 Culp et al.
6032849 March 7, 2000 Mastri et al.
6045560 April 4, 2000 McKean et al.
6090123 July 18, 2000 Culp et al.
6126651 October 3, 2000 Mayer
6129547 October 10, 2000 Cise et al.
6165169 December 26, 2000 Panescu et al.
6239732 May 29, 2001 Cusey
6241139 June 5, 2001 Milliman et al.
6264086 July 24, 2001 McGuckin, Jr.
6264087 July 24, 2001 Whitman
6302311 October 16, 2001 Adams et al.
6315184 November 13, 2001 Whitman
6321855 November 27, 2001 Barnes
6329778 December 11, 2001 Culp et al.
6343731 February 5, 2002 Adams et al.
6348061 February 19, 2002 Whitman
6368324 April 9, 2002 Dinger et al.
6371909 April 16, 2002 Hoeg et al.
6434507 August 13, 2002 Clayton et al.
6443973 September 3, 2002 Whitman
6461372 October 8, 2002 Jensen et al.
6488197 December 3, 2002 Whitman
6491201 December 10, 2002 Whitman
6533157 March 18, 2003 Whitman
6537280 March 25, 2003 Dinger et al.
6610066 August 26, 2003 Dinger et al.
6611793 August 26, 2003 Burnside et al.
6645218 November 11, 2003 Cassidy et al.
6654999 December 2, 2003 Stoddard et al.
6698643 March 2, 2004 Whitman
6699177 March 2, 2004 Wang et al.
6716233 April 6, 2004 Whitman
6743240 June 1, 2004 Smith et al.
6783533 August 31, 2004 Green et al.
6792390 September 14, 2004 Burnside et al.
6793652 September 21, 2004 Whitman et al.
6817508 November 16, 2004 Racenet et al.
6830174 December 14, 2004 Hillstead et al.
6846308 January 25, 2005 Whitman et al.
6846309 January 25, 2005 Whitman et al.
6849071 February 1, 2005 Whitman et al.
6860892 March 1, 2005 Tanaka et al.
6899538 May 31, 2005 Matoba
6905057 June 14, 2005 Swayze et al.
6959852 November 1, 2005 Shelton, IV et al.
6964363 November 15, 2005 Wales et al.
6981628 January 3, 2006 Wales
6981941 January 3, 2006 Whitman et al.
6986451 January 17, 2006 Mastri et al.
6988649 January 24, 2006 Shelton, IV et al.
7032798 April 25, 2006 Whitman et al.
RE39152 June 27, 2006 Aust et al.
7055731 June 6, 2006 Shelton, IV et al.
7059508 June 13, 2006 Shelton, IV et al.
7077856 July 18, 2006 Whitman
7111769 September 26, 2006 Wales et al.
7122029 October 17, 2006 Koop et al.
7140528 November 28, 2006 Shelton, IV
7141049 November 28, 2006 Stern et al.
7143923 December 5, 2006 Shelton, IV et al.
7143925 December 5, 2006 Shelton, IV et al.
7143926 December 5, 2006 Shelton, IV et al.
7147138 December 12, 2006 Shelton, IV
7172104 February 6, 2007 Scirica et al.
7225964 June 5, 2007 Mastri et al.
7238021 July 3, 2007 Johnson
7246734 July 24, 2007 Shelton, IV
7252660 August 7, 2007 Kunz
7328828 February 12, 2008 Ortiz et al.
7364061 April 29, 2008 Swayze et al.
7380695 June 3, 2008 Doll et al.
7380696 June 3, 2008 Shelton, IV et al.
7404508 July 29, 2008 Smith et al.
7407078 August 5, 2008 Shelton, IV et al.
7416101 August 26, 2008 Shelton, IV et al.
7419080 September 2, 2008 Smith et al.
7422139 September 9, 2008 Shelton, IV et al.
7431189 October 7, 2008 Shelton, IV et al.
7441684 October 28, 2008 Shelton, IV et al.
7448525 November 11, 2008 Shelton, IV et al.
7464846 December 16, 2008 Shelton, IV et al.
7464847 December 16, 2008 Viola et al.
7464849 December 16, 2008 Shelton, IV et al.
7481347 January 27, 2009 Roy
7481824 January 27, 2009 Boudreaux et al.
7487899 February 10, 2009 Shelton, IV et al.
7549564 June 23, 2009 Boudreaux
7565993 July 28, 2009 Milliman et al.
7568603 August 4, 2009 Shelton, IV et al.
7575144 August 18, 2009 Ortiz et al.
7588175 September 15, 2009 Timm et al.
7588176 September 15, 2009 Timm et al.
7637409 December 29, 2009 Marczyk
7641093 January 5, 2010 Doll et al.
7644848 January 12, 2010 Swayze et al.
7670334 March 2, 2010 Hueil et al.
7673780 March 9, 2010 Shelton, IV et al.
7699835 April 20, 2010 Lee et al.
7717312 May 18, 2010 Beetel
7721931 May 25, 2010 Shelton, IV et al.
7738971 June 15, 2010 Swayze et al.
7740159 June 22, 2010 Shelton, IV et al.
7743960 June 29, 2010 Whitman et al.
7758613 July 20, 2010 Whitman
7766210 August 3, 2010 Shelton, IV et al.
7770773 August 10, 2010 Whitman et al.
7770775 August 10, 2010 Shelton, IV et al.
7793812 September 14, 2010 Moore et al.
7799039 September 21, 2010 Shelton, IV et al.
7802712 September 28, 2010 Milliman et al.
7803151 September 28, 2010 Whitman
7822458 October 26, 2010 Webster, III et al.
7845534 December 7, 2010 Viola et al.
7845537 December 7, 2010 Shelton, IV et al.
7857185 December 28, 2010 Swayze et al.
7870989 January 18, 2011 Viola et al.
7900805 March 8, 2011 Shelton, IV et al.
7905897 March 15, 2011 Whitman et al.
7918230 April 5, 2011 Whitman et al.
7922061 April 12, 2011 Shelton, IV et al.
7922719 April 12, 2011 Ralph et al.
7947034 May 24, 2011 Whitman
7951071 May 31, 2011 Whitman et al.
7954682 June 7, 2011 Giordano et al.
7959051 June 14, 2011 Smith et al.
7963433 June 21, 2011 Whitman et al.
7967178 June 28, 2011 Scirica et al.
7967179 June 28, 2011 Olson et al.
7992758 August 9, 2011 Whitman et al.
8011550 September 6, 2011 Aranyi et al.
8016178 September 13, 2011 Olson et al.
8016855 September 13, 2011 Whitman et al.
8020743 September 20, 2011 Shelton, IV
8025199 September 27, 2011 Whitman et al.
8035487 October 11, 2011 Malackowski
8052024 November 8, 2011 Viola et al.
8114118 February 14, 2012 Knodel et al.
8127975 March 6, 2012 Olson et al.
8132705 March 13, 2012 Viola et al.
8152516 April 10, 2012 Harvey et al.
8157150 April 17, 2012 Viola et al.
8157151 April 17, 2012 Ingmanson et al.
8182494 May 22, 2012 Yencho et al.
8186555 May 29, 2012 Shelton, IV et al.
8186587 May 29, 2012 Zmood et al.
8220367 July 17, 2012 Hsu
8235273 August 7, 2012 Olson et al.
8241322 August 14, 2012 Whitman et al.
8272554 September 25, 2012 Whitman et al.
8292150 October 23, 2012 Bryant
8292888 October 23, 2012 Whitman
8342379 January 1, 2013 Whitman et al.
8348130 January 8, 2013 Shah et al.
8348855 January 8, 2013 Hillely et al.
8353440 January 15, 2013 Whitman et al.
8357144 January 22, 2013 Whitman et al.
8365633 February 5, 2013 Simaan et al.
8365972 February 5, 2013 Aranyi et al.
8371492 February 12, 2013 Aranyi et al.
8372057 February 12, 2013 Cude et al.
8391957 March 5, 2013 Carlson et al.
8403926 March 26, 2013 Nobis et al.
8418904 April 16, 2013 Wenchell et al.
8424739 April 23, 2013 Racenet et al.
8454585 June 4, 2013 Whitman
8505802 August 13, 2013 Viola et al.
8517241 August 27, 2013 Nicholas et al.
8523043 September 3, 2013 Ullrich et al.
8551076 October 8, 2013 Duval et al.
8561871 October 22, 2013 Rajappa et al.
8561874 October 22, 2013 Scirica
8602287 December 10, 2013 Yates et al.
8623000 January 7, 2014 Humayun et al.
8627995 January 14, 2014 Smith et al.
8632463 January 21, 2014 Drinan et al.
8636766 January 28, 2014 Milliman et al.
8647258 February 11, 2014 Aranyi et al.
8652121 February 18, 2014 Quick et al.
8657174 February 25, 2014 Yates et al.
8657177 February 25, 2014 Scirica et al.
8672206 March 18, 2014 Aranyi et al.
8696552 April 15, 2014 Whitman
8708213 April 29, 2014 Shelton, IV et al.
8715306 May 6, 2014 Faller et al.
8758391 June 24, 2014 Swayze et al.
8806973 August 19, 2014 Ross et al.
8808311 August 19, 2014 Heinrich et al.
8820605 September 2, 2014 Shelton, IV
8851355 October 7, 2014 Aranyi et al.
8858571 October 14, 2014 Shelton, IV et al.
8875972 November 4, 2014 Weisenburgh, II et al.
8888762 November 18, 2014 Whitman
8893946 November 25, 2014 Boudreaux et al.
8899462 December 2, 2014 Kostrzewski et al.
8905289 December 9, 2014 Patel et al.
8919630 December 30, 2014 Milliman
8931680 January 13, 2015 Milliman
8939344 January 27, 2015 Olson et al.
8950646 February 10, 2015 Viola
8960519 February 24, 2015 Whitman et al.
8961396 February 24, 2015 Azarbarzin et al.
8967443 March 3, 2015 McCuen
8968276 March 3, 2015 Zemlok et al.
8968337 March 3, 2015 Whitfield et al.
8992422 March 31, 2015 Spivey et al.
9016545 April 28, 2015 Aranyi et al.
9023014 May 5, 2015 Chowaniec et al.
9033868 May 19, 2015 Whitman et al.
9055943 June 16, 2015 Zemlok et al.
9064653 June 23, 2015 Prest et al.
9072515 July 7, 2015 Hall et al.
9113847 August 25, 2015 Whitman et al.
9113875 August 25, 2015 Viola et al.
9113876 August 25, 2015 Zemlok et al.
9113899 August 25, 2015 Garrison et al.
9216013 December 22, 2015 Scirica et al.
9241712 January 26, 2016 Zemlok et al.
9282961 March 15, 2016 Whitman et al.
9282963 March 15, 2016 Bryant
9295522 March 29, 2016 Kostrzewski
9307986 April 12, 2016 Hall et al.
20010031975 October 18, 2001 Whitman et al.
20020049454 April 25, 2002 Whitman et al.
20020165541 November 7, 2002 Whitman
20030038938 February 27, 2003 Jung et al.
20030165794 September 4, 2003 Matoba
20040034369 February 19, 2004 Sauer et al.
20040111012 June 10, 2004 Whitman
20040133189 July 8, 2004 Sakurai
20040153124 August 5, 2004 Whitman
20040176751 September 9, 2004 Weitzner et al.
20040193146 September 30, 2004 Lee et al.
20050125027 June 9, 2005 Knodel et al.
20050131442 June 16, 2005 Yachia et al.
20060124689 June 15, 2006 Arad et al.
20060142656 June 29, 2006 Malackowski et al.
20060142740 June 29, 2006 Sherman et al.
20060142744 June 29, 2006 Boutoussov
20060259073 November 16, 2006 Miyamoto et al.
20060278680 December 14, 2006 Viola et al.
20060284730 December 21, 2006 Schmid et al.
20070023476 February 1, 2007 Whitman et al.
20070023477 February 1, 2007 Whitman et al.
20070029363 February 8, 2007 Popov
20070084897 April 19, 2007 Shelton et al.
20070102472 May 10, 2007 Shelton
20070152014 July 5, 2007 Gillum et al.
20070175947 August 2, 2007 Ortiz et al.
20070175949 August 2, 2007 Shelton et al.
20070175950 August 2, 2007 Shelton et al.
20070175951 August 2, 2007 Shelton et al.
20070175955 August 2, 2007 Shelton et al.
20070175961 August 2, 2007 Shelton et al.
20070270784 November 22, 2007 Smith et al.
20080029570 February 7, 2008 Shelton et al.
20080029573 February 7, 2008 Shelton et al.
20080029574 February 7, 2008 Shelton et al.
20080029575 February 7, 2008 Shelton et al.
20080058801 March 6, 2008 Taylor et al.
20080109012 May 8, 2008 Falco et al.
20080110958 May 15, 2008 McKenna et al.
20080147089 June 19, 2008 Loh et al.
20080167736 July 10, 2008 Swayze et al.
20080185419 August 7, 2008 Smith et al.
20080188841 August 7, 2008 Tomasello et al.
20080197167 August 21, 2008 Viola et al.
20080208195 August 28, 2008 Shores et al.
20080237296 October 2, 2008 Boudreaux et al.
20080251561 October 16, 2008 Eades et al.
20080255413 October 16, 2008 Zemlok et al.
20080255607 October 16, 2008 Zemlok
20080262654 October 23, 2008 Omori et al.
20080308603 December 18, 2008 Shelton et al.
20090012533 January 8, 2009 Barbagli et al.
20090090763 April 9, 2009 Zemlok et al.
20090099876 April 16, 2009 Whitman
20090138006 May 28, 2009 Bales et al.
20090171147 July 2, 2009 Lee et al.
20090182193 July 16, 2009 Whitman et al.
20090209946 August 20, 2009 Swayze et al.
20090209990 August 20, 2009 Yates et al.
20090254094 October 8, 2009 Knapp et al.
20090299141 December 3, 2009 Downey et al.
20100023022 January 28, 2010 Zeiner et al.
20100069942 March 18, 2010 Shelton, IV
20100193568 August 5, 2010 Scheib et al.
20100211053 August 19, 2010 Ross et al.
20100225073 September 9, 2010 Porter et al.
20110071508 March 24, 2011 Duval et al.
20110077673 March 31, 2011 Grubac et al.
20110121049 May 26, 2011 Malinouskas et al.
20110125138 May 26, 2011 Malinouskas et al.
20110139851 June 16, 2011 McCuen
20110155783 June 30, 2011 Rajappa et al.
20110155786 June 30, 2011 Shelton, IV
20110172648 July 14, 2011 Jeong
20110174009 July 21, 2011 Iizuka et al.
20110174099 July 21, 2011 Ross et al.
20110184245 July 28, 2011 Xia et al.
20110204119 August 25, 2011 McCuen
20110218522 September 8, 2011 Whitman
20110276057 November 10, 2011 Conlon et al.
20110290854 December 1, 2011 Timm et al.
20110295242 December 1, 2011 Spivey et al.
20110295269 December 1, 2011 Swensgard et al.
20120000962 January 5, 2012 Racenet et al.
20120074199 March 29, 2012 Olson et al.
20120089131 April 12, 2012 Zemlok et al.
20120104071 May 3, 2012 Bryant
20120116368 May 10, 2012 Viola
20120143002 June 7, 2012 Aranyi et al.
20120172924 July 5, 2012 Allen, IV
20120211542 August 23, 2012 Racenet
20120223121 September 6, 2012 Viola et al.
20120245428 September 27, 2012 Smith et al.
20120253329 October 4, 2012 Zemlok et al.
20120310220 December 6, 2012 Malkowski et al.
20120323226 December 20, 2012 Chowaniec et al.
20120330285 December 27, 2012 Hartoumbekis et al.
20130093149 April 18, 2013 Saur et al.
20130181035 July 18, 2013 Milliman
20130184704 July 18, 2013 Beardsley et al.
20130214025 August 22, 2013 Zemlok et al.
20130274722 October 17, 2013 Kostrzewski et al.
20130282052 October 24, 2013 Aranyi et al.
20130292451 November 7, 2013 Viola et al.
20130313304 November 28, 2013 Shelton, IV et al.
20130317486 November 28, 2013 Nicholas et al.
20130319706 December 5, 2013 Nicholas et al.
20130324978 December 5, 2013 Nicholas et al.
20130324979 December 5, 2013 Nicholas et al.
20130334281 December 19, 2013 Williams
20140012236 January 9, 2014 Williams et al.
20140012237 January 9, 2014 Pribanic et al.
20140012289 January 9, 2014 Snow et al.
20140025046 January 23, 2014 Williams et al.
20140110455 April 24, 2014 Ingmanson et al.
20140207125 July 24, 2014 Applegate et al.
20140207182 July 24, 2014 Zergiebel et al.
20140207185 July 24, 2014 Goble et al.
20140236174 August 21, 2014 Williams et al.
20140276932 September 18, 2014 Williams et al.
20140299647 October 9, 2014 Scirica et al.
20140303668 October 9, 2014 Nicholas et al.
20140358129 December 4, 2014 Zergiebel et al.
20140361068 December 11, 2014 Aranyi et al.
20140365235 December 11, 2014 DeBoer et al.
20140373652 December 25, 2014 Zergiebel et al.
20150014392 January 15, 2015 Williams et al.
20150048144 February 19, 2015 Whitman
20150076205 March 19, 2015 Zergiebel
20150080912 March 19, 2015 Sapre
20150112381 April 23, 2015 Richard
20150122870 May 7, 2015 Zemlok et al.
20150133224 May 14, 2015 Whitman et al.
20150150547 June 4, 2015 Ingmanson et al.
20150150574 June 4, 2015 Richard et al.
20150157320 June 11, 2015 Zergiebel et al.
20150157321 June 11, 2015 Zergiebel et al.
20150164502 June 18, 2015 Richard et al.
20150201931 July 23, 2015 Zergiebel et al.
20150272577 October 1, 2015 Zemlok et al.
20150297199 October 22, 2015 Nicholas et al.
20150303996 October 22, 2015 Calderoni
20150320420 November 12, 2015 Penna et al.
20150327850 November 19, 2015 Kostrzewski
20150342601 December 3, 2015 Williams et al.
20150342603 December 3, 2015 Zergiebel et al.
20150374366 December 31, 2015 Zergiebel et al.
20150374370 December 31, 2015 Zergiebel et al.
20150374371 December 31, 2015 Richard et al.
20150374372 December 31, 2015 Zergiebel et al.
20150374449 December 31, 2015 Chowaniec et al.
20150380187 December 31, 2015 Zergiebel et al.
20160095585 April 7, 2016 Zergiebel et al.
20160095596 April 7, 2016 Scirica et al.
20160106406 April 21, 2016 Cabrera et al.
20160113648 April 28, 2016 Zergiebel et al.
20160113649 April 28, 2016 Zergiebel et al.
Foreign Patent Documents
2451558 January 2003 CA
1547454 November 2004 CN
1957854 May 2007 CN
101495046 July 2009 CN
101683284 March 2010 CN
102247182 November 2011 CN
102648864 August 2012 CN
102008053842 May 2010 DE
0705571 April 1996 EP
1563793 August 2005 EP
1769754 April 2007 EP
2165664 March 2010 EP
2316345 May 2011 EP
2491872 August 2012 EP
2668910 December 2013 EP
2333509 February 2010 ES
H07-299074 November 1995 JP
H09-503896 April 1997 JP
2005-125075 May 2005 JP
2010-75694 April 2010 JP
2011-50744 March 2011 JP
2012-170820 September 2012 JP
20120022521 March 2012 KR
2011/108840 September 2011 WO
2012/040984 April 2012 WO
Other references
  • Chinese Office Action (with English translation), dated Apr. 25, 2017, corresponding to Chinese Application No. 201310492696X; 9 total pages.
  • European Office Action dated Apr. 11, 2017, corresponding to European Application No. 15156035.6; 5 pages.
  • Chinese Office Action dated Sep. 23, 2016 in corresponding Chinese Application No. 201310492696X.
  • Extended European Search Report corresponding to counterpart International Application No. EP 14 18 4882.0 dated May 12, 2015.
  • Canadian Office Action corresponding to counterpart International Application No. CA 2640399 dated May 7, 2015.
  • Japanese Office Action corresponding to counterpart International Application No. JP 2011-197365 dated Mar. 23, 2015.
  • Japanese Office Action corresponding to counterpart International Application No. JP 2011-084092 dated May 20, 2015.
  • Japanese Office Action corresponding to counterpart International Application No. JP 2014-148482 dated Jun. 2, 2015.
  • Extended European Search Report corresponding to counterpart International Application No. EP 14 18 9358.6 dated Jul. 8, 2015.
  • Extended European Search Report corresponding to counterpart International Application No. EP 14 19 6148.2 dated Apr. 23, 2015.
  • Partial European Search Report corresponding to counterpart International Application No. EP 14 19 6704.2 dated May 11, 2015.
  • Australian Office Action corresponding to counterpart International Application No. AU 2010241367 dated Aug. 20, 2015.
  • Partial European Search Report corresponding to counterpart International Application No. EP 14 19 9783.3 dated Sep. 3, 2015.
  • Extended European Search Report corresponding to counterpart International Application No. EP 15 16 9962.6 dated Sep. 14, 2015.
  • Extended European Search Report corresponding to International Application No. EP 15 15 1076.5 dated Apr. 22, 2015.
  • Japanese Office Action corresponding to International Application No. JP 2011-084092 dated Jan. 14, 2016.
  • Extended European Search Report corresponding to International Application No. EP 12 19 7970.2 dated Jan. 28, 2016.
  • Chinese Office Action corresponding to International Application No. CN 201210560638.1 dated Oct. 21, 2015.
  • European Office Action corresponding to International Application No. EP 14 15 9056.2 dated Oct. 26, 2015.
  • Australian Examination Report No. 1 corresponding to International Application No. AU 2015200153 dated Dec. 11, 2015.
  • Australian Examination Report No. 1 corresponding to International Application No. AU 2014204542 dated Jan. 7, 2016.
  • Chinese Office Action corresponding to International Application No. CN 201310125449.6 dated Feb. 3, 2016.
  • Extended European Search Report corresponding to International Application No. EP 15 19 0245.9 dated Jan. 28, 2016.
  • Extended European Search Report corresponding to International Application No. EP 15 16 7793d.7 dated Apr. 5, 2016.
  • European Office Action corresponding to International Application No. EP 14 18 4882.0 dated Apr. 25, 2016.
  • Extended European Search Report corresponding to International Application No. EP 14 19 6704.2 dated Sep. 24, 2015.
  • International Search Report and Written Opinion corresponding to Int'l Appln. No. PCT/US2015/051837, dated Dec. 21, 2015.
  • Extended European Search Report corresponding to International Application No. EP 14 19 7563.1 dated Aug. 5, 2015.
  • Partial European Search Report corresponding to International Application No. EP 15 19 0643.5 dated Feb. 26, 2016.
  • Extended European Search Report corresponding to International Application No. EP 15 16 6899.3 dated Feb. 3, 2016.
  • Extended European Search Report corresponding to International Application No. EP 14 19 9783.3 dated Dec. 22, 2015.
  • Extended European Search Report corresponding to International Application No. EP 15 17 3807.7 dated Nov. 24, 2015.
  • Extended European Search Report corresponding to International Application No. EP 15 19 0760.7 dated Apr. 1, 2016.
  • Extended European Search Report corresponding to International Application No. EP 15 17 3803.6 dated Nov. 24, 2015.
  • Extended European Search Report corresponding to International Application No. EP 15 17 3804.4 dated Nov. 24, 2015.
  • Extended European Search Report corresponding to International Application No. EP 15 18 8539.9 dated Feb. 17, 2016.
  • Extended European Search Report corresponding to International Application No. EP 15 17 3910.9 dated Nov. 13, 2015.
  • European Office Action corresponding to International Application No. EP 14 15 2236.7 dated Aug. 11, 2015.
  • Extended European Search Report corresponding to International Application No. EP 15 18 4915.5 dated Jan. 5, 2016.
  • Chinese Office Action corresponding to counterpart Int'l Appln. No. CN 201310369318.2 dated Jun. 28, 2016.
  • Chinese Office Action (with English translation), dated Jul. 4, 2016, corresponding to Chinese Patent Application No. 2015101559718; 23 total pages.
  • European Search Report EP 15 156 035.6 dated Aug. 10, 2016.
  • Japanese Office Action (with English translation), dated Jun. 9, 2017, corresponding to Japanese Application No. 2013-182718; 7 total pages.
  • Australian Examination Report No. 1 (with Official Action Summary Form), dated May 11, 2017, corresponding to Australian Application No. 2013216677; 7 total pages.
Patent History
Patent number: 10201347
Type: Grant
Filed: Aug 2, 2016
Date of Patent: Feb 12, 2019
Patent Publication Number: 20160338700
Assignee: Covidien LP (Mansfield, MA)
Inventors: Michael Ingmanson (Stratford, CT), Michael Zemlok (Prospect, CT)
Primary Examiner: Michelle Lopez
Application Number: 15/226,024
Classifications
Current U.S. Class: With Magazine (227/176.1)
International Classification: A61B 17/072 (20060101); A61B 17/068 (20060101); A61B 90/90 (20160101); A61B 17/115 (20060101); A61B 17/10 (20060101); A61B 17/00 (20060101); A61B 90/00 (20160101);